Lightning-arrester.



No. 769,738. PATENTBD SEPT. 13, 1904. W. H. & J. B. GEIST.

LIGHTNING ARRESTBR.

APPLICATION FILED APR. 26, 1904,

NO MODEL.

NiTED STATES Patented September 13, 1304.

PATENT OFFICE- I/VILLIS H. GEIST AND JOHN E. GEIST, OF GALLATIN, MISSOURI.

LlGHTNlNG-ARRESTER.

SPECIFICATION forming part of Letters Patent No. 769,738, dated September 18, 1904.

Application filed April 26,1904.

To all 1071/0111 it may concern:

Be it known that we, \VILLIs H. Guis'r and JOHN E. (JEIsT, citizens of the United States, residing at (iallatin, in the county of Daviess, State of Missouri, have invented certain new and useful Improvements in Li ghtning-Arresters; and we do hereby declare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to lightning-arresters, and has for its object to provide an arr-ester which will be simple of construction and cheap of manufacture and which may be readily installed at small cost and with a minimum of labor.

Other objects and advantages will be apparent from the following description.

In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in the several views, Figure 1 is a front elevation of the present invention applied to a line. Fig. 2 is a side elevation of the same. Fig. 3 is a view of one end of the insulator when at right angles to Fig. 1. Fig. 1 is a longitudinal sectional view of the insulator, showing the wires in position.

Referring now to the drawings, there is shown a plate 5, of insulating material, having perforations 6 and 7 therethrough for the reception of spikes by which the plate may be attached to the wall of a building or other desirable place.

Extending outwardly from the forward face of the plate at either end thereof are cylindrical enlargements 8 and 9, having longitudinal passages 8 and 9 therethrough and peripheral grooves 10 and 11, the ends of each groove being spaced from each other longitudinally of the enlargement and overlapping for a short distance, as shown at 12 and 13. Each enlargement has a groove 14 in its inner end face, which runs from the central passage of the enlargement to a point on its periphery in a line with the ends 12 and 13 of the grooves 10 and 11, and each enlargement is provided with a longitudinal Serial No. 205,017. (No model.)

groove 15, which connects the ends of its peripheral groove with that of its groove 14.

As shown, the ends 12 of the grooves 10 and 11 extend somewhat beyond the grooves 14. Engaged with each of the enlargements is an electricity-conducting wire which is passed inwardly from the outer face of the enlargement through the central passage and is bent at an angle to lie in the groove 1%, beyond the outer end of which it is again bent to lie in the groove 15, from which it passes to the peripheral groove of the enlargement, extending around the enlargement and having its free end engaged beneath the portion lying in the groove 15 and bent into a hook therebeyond, as shown. The hooked ends of the two wires are disposed to he one above the other and spaced a slight distance apart.

As shown in Fig. 1, the wire which is engaged with the enlargement 9 is connected with a plate 16, buried in the ground, and to this wire is connected the ground-wire of a telephone instrument. The remaining wire is connected to the instrument and forms the other portion of the circuit, the line-wire being connected to this wire adjacent to the above-described device. It will thus be apparent that if the line be struck by lightning the latter will jump across the space between the hooked ends of the wires and will pass down the ground-wire to the ground instead of passing through the instrument and burning it out.

That is claimed is 1. In a lightning-arrester, the combination with an insulator comprising a plate arranged for attachment to a support and having cylindrical enlargements at the ends thereof, said enlargements having longitudinal passages and peripheral grooves, the ends of said grooves overlapping, said enlargements also having grooves in their inner faces connecting the passages with their peripheries and grooves in said peripheries connecting the ends of the peripheral grooves with the ends of the grooves in their inner end faces, of wires engaged with the passages and the several grooves and having their free ends engaged beneath themselves and bent into hooked hooks being spaced from each other at their bills, said wires being arranged for connection with the ground and line wires respectively of a telephone.

In testimony whereof we aflix our signatures in presence of two witnesses.

WILLIS H. GEIST. JOHN E. GEIST.

Witnesses:

'RoLLIN J. BRITToN, W. C. MAGY. 

